Ultrasonic transducer in lithotripters

Details Ultrasonic transducer in lithotripters Ultrasonic transducer in lithotripters

1990-12-19

1993-05-11

Cohen, Lee S.

Surgery

Truss

Perineal

12866003, A61B 1722

Patent

active

052092224

ABSTRACT:
A lithotripter having a shockwave generator having a cavity filled with water, further having an ultrasonic, locating transducer mounted by means of a holding device which includes metallic inner and outer shells each having a large acoustic impedance as compared with water and an acoustically attenuating layer interposed between the two shells; the shells are spaced from each other so that the shockwaves will be eliminated by interference.

REFERENCES:
patent: 4901709 (1990-02-01), Rattner
patent: 4915114 (1990-04-01), Hassler
patent: 4928672 (1990-05-01), Grasser et al.
patent: 4947830 (1990-08-01), Rattner et al.
patent: 4957099 (1990-09-01), Hassler
patent: 4984565 (1991-01-01), Rattner et al.
patent: 5009232 (1991-04-01), Hassler et al.
patent: 5025789 (1991-06-01), Hassler
patent: 5031626 (1991-07-01), Hassler et al.

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